56 lines
1.7 KiB
C
56 lines
1.7 KiB
C
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// This file is part of libigl, a simple c++ geometry processing library.
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//
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// Copyright (C) 2013 Alec Jacobson <alecjacobson@gmail.com>
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//
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// This Source Code Form is subject to the terms of the Mozilla Public License
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// v. 2.0. If a copy of the MPL was not distributed with this file, You can
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// obtain one at http://mozilla.org/MPL/2.0/.
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#ifndef IGL_LIST_TO_MATRIX_H
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#define IGL_LIST_TO_MATRIX_H
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#include "igl_inline.h"
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#include <vector>
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#include <Eigen/Core>
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namespace igl
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{
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// Convert a list (std::vector) of row vectors of the same length to a matrix
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// Template:
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// T type that can be safely cast to type in Mat via '='
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// Mat Matrix type, must implement:
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// .resize(m,n)
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// .row(i) = Row
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// Inputs:
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// V a m-long list of vectors of size n
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// Outputs:
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// M an m by n matrix
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// Returns true on success, false on errors
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template <typename T, typename Derived>
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IGL_INLINE bool list_to_matrix(
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const std::vector<std::vector<T > > & V,
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Eigen::PlainObjectBase<Derived>& M);
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// Convert a list of row vectors of `n` or less to a matrix and pad on
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// the right with `padding`:
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//
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// Inputs:
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// V a m-long list of vectors of size <=n
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// n number of columns
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// padding value to fill in from right for short rows
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// Outputs:
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// M an m by n matrix
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template <typename T, typename Derived>
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IGL_INLINE bool list_to_matrix(
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const std::vector<std::vector<T > > & V,
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const int n,
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const T & padding,
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Eigen::PlainObjectBase<Derived>& M);
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// Vector wrapper
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template <typename T, typename Derived>
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IGL_INLINE bool list_to_matrix(const std::vector<T > & V,Eigen::PlainObjectBase<Derived>& M);
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}
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#ifndef IGL_STATIC_LIBRARY
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# include "list_to_matrix.cpp"
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#endif
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#endif
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